a:8:{i:0;s:2:"id";i:1;s:3:"uid";i:2;s:8:"add_time";i:3;s:3:"num";i:4;s:7:"act_num";i:5;s:4:"type";s:3:"_pk";s:2:"id";s:5:"_type";a:6:{s:2:"id";s:16:"int(11) unsigned";s:3:"uid";s:7:"int(11)";s:8:"add_time";s:7:"int(11)";s:3:"num";s:13:"decimal(20,4)";s:7:"act_num";s:13:"decimal(20,4)";s:4:"type";s:10:"tinyint(4)";}}